Finding the Fourth Proportional to 161.24, 241.70 and 84.05
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Solution
The fourth proportional to 161.24, 241.70 and 84.05 is: 125.99
Step by Step Solution
- Step 1: Write the proportion equation
161.24 : 241.70 = 84.05 : x - Step 2: Convert to fraction form
161.24/241.70 = 84.05/x - Step 3: Cross multiply
161.24x = 241.70 × 84.05 - Step 4: Simplify right side
161.24x = 20,313.26 - Step 5: Solve for x
x = 20,313.26/161.24 - Step 6: Final answer
x = 125.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.